What is not considered to be a hidden cost of a gallon of gasoline?
A. government subsidies for oil companies
B. tax breaks for car manufacturers and road builders
C. research and development for hybrid cars
D. cost of pollution control and cleanup
E. costs of military protection of oil supplies in the Middle East
Answer: C
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Class distinctions arise from all of the following except
A. wealth B. education C. inheritance D. age
Which does not describe a law?
a. A law summarizes observations. b. A law explains observations. c. A law is the largest construct to summarize experimental observations d. A law explains unvarying uniformity under the same conditions.
Low pressure systems form over heated landmasses in the summer while high pressure systems form over the ocean
Indicate whether the statement is true or false
Planktonic organisms often have needle-like structures that ________
A) are used as a defense mechanism B) are used as paddles to catch ocean currents C) increase density D) prevent sinking E) serve as a "skeleton" to support the diatom